PubMatic (NASDAQ: PUBM) executive sells 12,315 shares via 10b5-1 plan

Rhea-AI Filing Summary

PubMatic, Inc.’s Chief Growth Officer Paulina Klimenko sold 12,315 shares of Class A Common Stock on January 6, 2026 at a weighted average price of $8.7299 per share. The transaction was coded as a sale and was executed under a Rule 10b5-1 trading plan that she adopted on May 8, 2025. After this sale, she beneficially owned 51,780 shares directly. The filing notes that the reported price is a weighted average, with individual sale prices ranging from $8.63 to $8.82 per share.

Insider Trade Summary

Net Seller: 12,315 shares ($107,509)

Net Sell 1 txn

Insider Klimenko Paulina

Role CHIEF GROWTH OFFICER

Sold 12,315 shs ($108K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	12,315	$8.7299	$108K

Holdings After Transaction: Class A Common Stock — 51,780 shares (Direct)

Footnotes (1)

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 8, 2025. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $8.63 to $8.82, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Klimenko Paulina

(Last) (First) (Middle)

C/O PUBMATIC, INC.

601 MARSHALL STREET

(Street)

REDWOOD CITY CA 94063

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
PubMatic, Inc. [ PUBM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CHIEF GROWTH OFFICER

3. Date of Earliest Transaction (Month/Day/Year)
01/06/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	01/06/2026		S(1)		12,315	D	$8.7299(2)	51,780	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 8, 2025.

2. The price reported in this line item is a weighted average price. These shares were sold at prices ranging from $8.63 to $8.82, inclusive. The Reporting Person undertakes to provide to the Issuer, any securityholder of the Issuer or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth herein.

	/s/ Andrew Woods, Attorney-in-Fact	01/07/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did PubMatic (PUBM) report in this Form 4?

The Form 4 reports that Chief Growth Officer Paulina Klimenko sold 12,315 shares of PubMatic Class A Common Stock on January 6, 2026.

At what price did Paulina Klimenko sell PubMatic (PUBM) shares?

The filing reports a weighted average sale price of $8.7299 per share, with individual trades executed between $8.63 and $8.82 per share.

How many PubMatic (PUBM) shares does the insider hold after this sale?

Following the reported transaction, Paulina Klimenko beneficially owned 51,780 shares of PubMatic Class A Common Stock, held directly.

Was the PubMatic (PUBM) insider sale under a Rule 10b5-1 trading plan?

Yes. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by Paulina Klimenko on May 8, 2025.

Who is the reporting person in this PubMatic (PUBM) Form 4 filing?

The reporting person is Paulina Klimenko, who serves as PubMatic’s Chief Growth Officer.

Does the Form 4 specify the range of prices for the PubMatic (PUBM) share sales?

Yes. It states the shares were sold at prices ranging from $8.63 to $8.82 per share, on a weighted-average basis.